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Portunatasaurus
Portunatasaurus was a small marine lizard that swam in warm seas during the time of the dinosaurs. It was only about 1 meter long, as long as a big skateboard, and had a long body and special flipper-like arms.12
Yabayeho ryari?
Yanganaga ite?
Yari ndende ite?
ndende nk'injangwe 2 zo mu rugo zikurikiranye🍌ndende nk'imineke 6 ikurikiranye🏊yashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 15Portunatasaurus yanganaga ite ugereranyije NAWE?
Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.
Yihutaga ite?
Utuntu dushimishije
Portunatasaurus had 10 small bones in its wrist, like land lizards, but also a flattened first finger bone like later sea lizards.2
Its arm was a mix between a walking leg and a swimming paddle, showing how lizards slowly turned into sea swimmers.2
The only skeleton found was almost complete from the neck to the hips, with a perfectly preserved right arm.2
It lived about 100 to 90 million years ago, during the Cenomanian and Turonian ages of the Late Cretaceous.3
Portunatasaurus is the third and youngest aigialosaur (a type of early marine lizard) found in Croatia.2
Ibibazo bibazwa cyane kuri Portunatasaurus
Ku bazobereye muri dinozore
- Izina rya siyansi
- Portunatasaurus
- Yiswe na
- Campbell Mekarski et al. 20194
- Itsinda
- Mozazore
- Umuryango / ishami
- Mosasauroidea4
- Ishyirwa mu byiciro
- Mosasauroidea4
- Imyaka y'amabuye
- imyaka miliyoni 100 kugeza 90 (Cenomanian / Turonian)4
- Ibihugu
- Korowasiya4
- Ibisigazwa byanditswe
- 1 muri The Paleobiology Database4
- Ivumburwa
- The skeleton was found in 2008 on the island of Dugi Otok in Croatia. Scientists Michelle Mekarski, Dražen Japundžić, Katarina Krizmanić and Michael Caldwell named it Portunatasaurus krambergeri in 2019.12
- Biracyagibwaho impaka
- Scientists are still debating whether its paddle-like arm evolved earlier in mosasaur history or evolved more than once.2
Aho amakuru yakuwe
- Portunatasaurus (en.wikipedia.org)
- Description of a new basal mosasauroid from the Late Cretaceous of Croatia, with comments on the evolution of the mosasauroid forelimb (exa.ai)
- PBDB Taxon (paleobiodb.org)
- Portunatasaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.
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Mosasaurus
Prognathodon
Tylosaurus
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Globidens
Tyrannosaurus
Triceratops
Velociraptor
Spinosaurus
Ankylosaurus
Parasaurolophus